Pumping apparatus



Aug. 16, 1938. E. F. GARDNER PUMPING APPARATUS Filed Jan. 25, 1937 4Shee'ts-Sheet l orneus Aug. 16, 1938. E. F. GARDNER 2,126,830

` PUMPING APPARATUS Filed Jan. 25, 1937 `"-1 Sheets-Sheet 2 l A torneusAug. 16, 1938. E. F. GARDNER PUMPING APPARATUS Filed Jan. 25, 1937 4Sheets-Sheet 5 nvenor Za-7.5072 Gard/7a er Aug. 16, 1938. E. F. GARDNERPUMPING APPARATUS Filed Jan. 25, 1937 4 Sheets-Sheet 4 Inventor Eds@ :IHummm Patented Aug. 16, 1938 UNITED STATES PATENT OFFICE 2,126,880PUMSPING APPARATUS Edson F. Gardner, Covington Township, LackawnnaCounty. Pa.

Application January 25, 1937, Serial 6 Claims.

This invention appertains to new and useful improvements in pumpingapparatus and more particularly to apparatus for pumping iluid fromWells.

The principal object of the present invention is to provide a pumpingapparatus whereby liquid sion to expand a collection chamber and thensubsequently releasing the pressure from the r liquid column andallowing displacement of the collected volume.

Another important to distribute the object of the invention is pumpingload over both halves o cycle; i. e., in the one-half of and wellassemblies.

Figure 2 is an end pump.

Figure 3 is an enlarged vertical sectional view through the pump.

Figure 4 is a vertical sectional view through the well assembly.

Figure 5 is a cross sectional view on theline .0 5-5 of Figure 4.

Figure 6 is a cross sectional view on the line 6 6 of Figure 4.

Figure '7 is a side elevational view of the movable cylinder. 5 Figure 8is a 8 8 of Figure 7 Figure 9 is a top plan view head shown in Figure 2.

Figure 10 is a side elevational view of the i cylinder head shown inFigure 9.

Figure 11 is a perspective view of one of the valve elements shown inFigure 4.

Figure 12 is a side elevational view of the piston shell shown in Figure4 with a part broken away.

elevational view of the of the cylinder cross sectional view on theline.

No. 122,240 (Cl. 103-44) Figure 13 is a sectional view on the line |3|3of Figure 1.

Referring to the drawings wherein like numerals designate like parts, itcan drainage and ventilation.

Extending downwardly from the core |5 is the eduction pipe 2| connectingwith the well assembly 1.

Referring to Figure 3, it can be seen that the pump 6 consists of theshell 22 having the head 23 at one end secured to the shell by manectingrod 30 for the cylinder 21 extends through the head 29 and threads intothe collar 3|. A cushion annulus 32 is provided between the head 29 andthe collar 3| while a coiled compressible spring 33 is interposedbetween the collar 3| and the head 28.

I'he head 28 perhead the clamp ring 36 between which and the head 33 apacking gland 31 is clamped and disposed A seating ring 39 is threadedinto the clamp ring 36 and has the pin 40 extending inwardly therefromwith the check valve 4| thereon as well as the spring means 42 fornormally maintaining the said valve 4| in seated position. The elbow 43depends from the bottom of the shell 22 and is internally threaded forreceiving the adjacent end of the pipe line I9.

Upstanding from the top portion of the shell 22 is the barrel 44 flangedat its upper end as at 45 for supporting the flanged end 46 of thebonnet structure 41. A diaphragm 48 is clamped between the flanges 46-45and traverses the interior of the barrel 44 and bonnet 41 as shown inFigure 3. A cup member 49 rests upon the diaphragm 48 and a coiledcompressible spring 50 is interposed between this cup and the top of thebonnet 41. Obviously in place of a diaphragm a piston or some othersuitable means can be adopted. A second cup structure bears against theunderside of the diaphragm 48 and a coiled compressible spring 52 isinterposed between this cup 5| and the valve element 53 which normallyengages the removable seat 54. The usual receiving tank (not shown) hasa pipe line connection to the neck 55.

In some instances where it may be desirable that the pump shown inFigure 3 be employed for pumping air to the tank, a check valve 56 ismounted on the head 23. When the pump is used for pumping liquid, theair intake 51 is sealed. However, when it is desired that air becompressed, the air intake is opened and operation of the cylinder 21will cause air to be drawn into the shell 22 and forced into the space58 and subsequently pass the valve 5 2 to the tank collecting the same.

Now referring to Figure 4, (the internal well assembly) it can be seenthat this assembly consists of the shell 59 internally threaded at itslower end to receive the upper externally threaded portion of thecup-like structure 68 which has the liquid receiving opening 6| in thelower end thereof.

The upper end portion of the shell 59 is internally threaded to receivethe externally threaded ring 62 and the enlarged externally threadedlower portion 63 of the bonnet structure 64. A clamp ring 65 is providedon the externally threaded enlarged portion 63. This ring 65 bearsagainst the upper edge of the shell 59 and acts as locking means.

The ring 62 acts as a clamp ring for theV packing gland 66 which wipesagainst the cylinder 61. The ring 62 is also provided with a dependingapron 68 spaced from the cylinder 61 and this serves as an abutment forthe piston unit generally referred to by numeral 69. This piston unitconsists of the shell having the outwardly disposed circumferentallyextending iiange 1| and the pair of annular members 12-13 thereon.Interposed between the annular member 13 and the member 12 is thepacking gland 14 and also a second packing gland is interposed between fthe flange 1| and the annulus 12. The cylinder 18 of the piston 69 isexternally threaded to engage through the annulus 13 and into theinternally threaded lower portion of the cylinder 61. A head 16 isthreaded into the upper end of the piston cylinder 18' and has opening11 therein over which the check valve 18 is engageable.

The lower portion of the cylinder `61 adjacent the valve 18 is providedwith ports 19. Furthermore, a stem 88 rises from the head 16 and has thevalve 18 thereon as well as the coiled compresslble spring 9| fornormally urging the valve 18 against the head 16 and over the opening11. The upper end of the cylinder 61 is provided with the head 82 havingopenings 83 therein normally closed by the valve 84. A stem 85 risesfrom the head 82 and has the valve 84 thereon and normally urgeddownwardly against the head 82 and over the openings 83 by the spring86.

As can be seen in Figure 4, a strong compressible coiled spring 81 isinterposed between the flanged lower end of the piston 69 and the bottomof the cup-like section 60.

It can now be seen, that when the cylinder 21 of the pump 6 in Figure 3is moved toward thc right the column of iiuid in the pipe |8-2| isplaced under pressure and this forces the cylinder 61 and piston 69downwardly in the shell 69 vagainst the tension of the spring 81. Asthis assembly moves downwardly, the valve 18 will open and allow liquidto ll the cylinder 61 as weil as the increased space 88 between theshell 59 and the cylinder 61. The cylinder 21 is now moved toward theleft in Figure 3 which releases the pressure on the column of fluid,permitting the spring 81 to exert its tension which drives the piston 69upwardly displacing the liquid from the space 88 into the cylinder 61through ports 19 and in view of the fact that it cannot leave thecylinder 61 by way of the valve 18, it must pass upwardly through theports 83. This fluid is then in the shell 22 in advance of the superhead33 of the cylinder 21. By now reversing the direction of the cylinder 21so that the cylinder 21 is moving toward the right, the trapped liquidis put under compression so that the valve 4| opens and allows a portionof the liquid to pass into the superhead 33 and out through the ports 34to the space 58. Due to the pressure above the valve 53, this liquidcannot at this time pass valve 53. The remaining portion of the liquidis forced into shell 59 as heretoforedescribed. The next movement towardthe left by the piston 21 will drive the fluid from the space 58 passthe valve 53 to the pipe line from the neck 55 (not shown).

The diaphragm 48 and springs 58-52 serve as a dierential assembly inconjunction with the valve 53. The same serving to maintain a suiiicientandpractically constant pressure on the valve 53 regardless of thehydraulic pressure in neck 55 so that when the cylinder 21 is movedtoward the right all of the pressure generated thereby will becommunicated to the cylinder assembly denoted by reference character 1.

It can now be seen that the spring 33 interposed betweeen the shoulder3| and the head 28 provides a novel means of taking up the shock oftemporary excessive pressure and restoring this energy when the shockperiod has passed. Under normal operating pressures there is no movementof connecting rod 38 through the head 29, but when an abnormal pressuresuch as a water hammer is encountered against the head 28, the plunger21 is forced outwardly along the connecting rod4 30 against the spring33. When the excess pressure is removed, the spring 33 returns plunger21 to its normal position.

It is preferable that the valve seats 39 and 54 each have a smallbleeder slot therein to provide for priming of pipes I9 and 2|. p

While the foregoing specification sets forth the invention in specificterms, it is to be understood that numerous changes inthe shape, sizeand materials may be resorted to without departing from the spirit andscope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new isz- 1. Incombination, a pump, a well liquid eduction pipe, a connection betweenthe pump and the upper portion of the eduction pipe, and means at thelower end of the eduction pipe responsive to pressure on the liquidcolumn in the eduction pipe by the pump for trapping and lifting liquidthrough the eduction pipe, a pipe leading to the pump, a union betweenthe upper end of the eduction pipe and the last mentioned pipe, saidunion consisting of a body adapted to be disposed over the top of theusual well casing, a downwardly tapering pocket in the said body, ahollow core disposed into the pocket, said body and core havingregistering ports with which the pipe from the pump can communicate, andmeans for urging the core snugly into the said pocket of the body.

2. In combination, a pump, a well liquid eduction pipe, a connectionbetween the. pump and the upper portion of the eduction pipe, and meansat the lower end of the eduction pipe responsive to pressure on theliquid column in the eduction pipe by the pump for trapping and liftingliquid through the eduction pipe, a pipe leading to the pump, a unionbetween the upper end of the eduction pipe and the last-mentioned pipe,said union consisting of a body adapted to be disposed over the top ofthe usual well casing, a downwardly tapering pocket in the said body, ahollow core disposed into the pocket, said body and core havingregistering ports with which the pipe from the pump can communicate, andmeans for urging the core snugly into the said pocket of the body, and abonnet structure for the body and a threaded stem extending upwardlyfrom the core and through the upper portion of the bonnet structure andprovided with a nut at its upper end adapted to be fed downwardly on thestem and against the upper end of the bonnet.

3. In combination, a pump, a well liquid eduction pipe, a connectionbetween the pump and the upper portio" be eduction pipe, and means atthe lower end of the eduction pipe responsive to pressure on the liquidcolumn in the eduction pipe by the pump for trapping and lifting liquidthrough the eduction pipe, said pump comprising a shell having a head ateach end thereof, a longitudinally slidable cylinder in the shell, saidshell being provided with a port therein for communication with theeduction pipe, a head structure on the slidable cylinder, a check valveprovided for passing liquid from the liquid intake end of the shell tothe liquid discharge end of the shell, and packing means on the headstructure, said packing means adapted to wipe the inside of the shell.

4. In combination, a pump, a well liquid eduction pipe, a connectionbetween the pump and the upper portion of the eduction pipe, and meansat the lower end of the eduction pipe re-a the upper sponsive topressure on the liquid column in the eduction pipe by the pump fortrapping and lifting liquid through the eduction pipe, said pumpcomprising a shell having a head at each end thereof, a longitudinallyslidable cylinder in the shell, said shell being provided with a porttherein for communication with the eduction ppie, a head structure onthe slidable cylinder, a check valve provided for passing liquid fromthe liquid intake end of the shell to the liquid discharge end of theshell, and packing means on the head structure, said packing meansadapted to wipe the inside of the shell, said cylinder being providedWith an actuating rod, and shock absorbing means between the rod and thecylinder.

5. In combination, a pump, a well liquid eduction pipe, a connectionbetween the pump and portion of the eduction pipe, and means at thelower end of the eduction pipe responsive to pressure on the liquidcolumn in the eduction pipe by the pump for trapping and lifting liquidthrough the eduction pipe, said pump comprising a shell having a head ateach end thereof, a longitudinally slidable cylinder in the shell, saidshell being provided with a port therein for communication with theeduction pipe, a head structure on the slidable cylinder, a check valveprovided for passing liquid from the liquid intake end of the shell tothe liquid discharge end of the shell, an outlet port for the shell, andpacking means on the head structure, said packing means adapted to wipethe inside of the shell, an outwardly movable check valve at the outletport of the shell and diierential spring means for maintaining the saidlast-mentioned check valve in closed position when pressure is beingapplied by the pump to the column of liquid in the eduction pipe.

6. In combination, a pump, a well liquid eduction pipe, a connectionbetween the pump and the upper portion of the eduction pipe, and meansat the lower end of the eduction pipe responsive to pressure on theliquid column in the eduction pipe by thel pump for trapping and liftingliquid through the eduction pipe, said pump comprising a shell havingcommunication with the eduction pipe, a check valve provided fo passingliquid from the liquid intake end of tre shell to the liquid dischargeend of the shell, an outlet port for the shell, and packing means on thehead structure, said packing means adapted to wipe the inside of theshell, an outwardly movable check valve at the outlet port of the shell,and differential spring means for maintaining the said last-mentionedcheck valve in closed position, said diil'erential spring meansconsisting of a spring imposed upon said valve, a second spring actingupon the first spring, the pressure exerted by the second spring on theilrst spring being varied by hydraulic pressure applied to the secondspring.

EDSON F. GARDNER.

